Want to continue reading?

We hope you’ve enjoyed the news stories you’ve read so far. To continue reading, register by letting us know your name and e-mail address and you will be able to read 30 stories every month. Or subscribe to AUTOSPORT+ for unlimited news stories and access to our exclusive subscriber-only content.

Sebastian Vettel and Romain Grosjean's retirements from the European Grand Prix were both caused by an overheating alternator, engine supplier Renault has confirmed, but the French car manufacturer is still uncertain about why the parts got too hot in the first place

You have viewed over 15 free stories this month. Why stop there? Click here to find out how to continue reading.